Stapling machine



June 19, 1923. 1,459,020 P. B. EYTCHISON STAPLING MACHINE Filed March 281922 grwen kw Ra ly 5. 594mm.

Patented June 19, 1923.

PUB/LY BQEY'ICHISON, OF IWI'I.QIHTI-IHQIL, NEBRASKA.

STAPLING MACHINE.

v Application filed March 28, .1922. Serial no. 547,411.

To all 107mm it may concern: I

Be it known that LPURL B. EYroHrsoN, a citizen of the United States,residing at Mitchell, county ofScotts Bluff, and State of Nebraska, haveinvented certain new and useful Improvements in Stapling Mae.

chines; andv I do declare the following to 'be a full, clear, and exactdescription of the invention, such as'will enable others skilled in theartto which it appertains to make and use the same, reference being hadto the accompanying. drawings, and to the characters of reference markedthereon, which form part of this specification.

Th object of this invention is to produce a machine or tool that can beconveniently and efiiciently employed by fence builders for the purposeof securing fence wire to steel angle posts by means of ordinarystaples. p I

- It is customary today in all parts ofithe country where timber is notplentiful,- to employ posts made of steel angles; these posts'may bedriven into the ground by a Sledgehammer and do not require holes to bedug for their reception. In order to fasten the fence wire orotherfencing to the posts, they are usually provided along one side with aplurality of spaced elongated holes or slots for the reception ofstaples.

The staples are usually placed over the wire. andpushed through theslots in the post, after which the ends of the staples are spread andfinally clinched by means of a hammer and portable anvil.

It is the object of this invention to pro vide a simple and substantialmachine which will eliminate pushing the staples through .the slots withthe fingers, the staple being put in a slot in the machine which, duringtheprocess of placing'the machine in position, places th staple-over thewire and through the slot. The machine is so designed that after themachine and the staple are properly placed and adjusted, a pull on theoperating handle will cause the machine to spread the ends of the stapleby bending it directly at the end of the slot and finally turning theends of the staple down fiat against the back-of the post and giving itthe maximum strength and resistance. U have also designed my, machine insuch a manner that it can be-easily put in place on a wire, and-havealso'provided it with means .whereby it may easily pass back over theation.

trating the wire when the clinching operation has been completed. V l yi The above objects are attainedbymeans of a construction which Iwillnow describe. reference being had for that purpose to the 1 accompanyingdrawing, in which- A i I Fig. 1 is a side elevation of. my. staplingtoolshowing the same in place on a post and in the position itoccupies'at the begin-' ning of the operation. y I

Fig. 2 is a side elevation similar to that shown in Fig. l, butshowingthe position of the parts at the'endof the clinching foper- Fig.3 is a view of the machine itself seen from the opposite side fromthatin Figs.

1. and ,2, and having a part thereof omitted so asto more clearly showthe construction. Fig.4 is a fragmentary viewwith portions shown insection for the purpose of illusconstruction of the adjustable abutment.

Fig. 5 is a fragmentary View looking in the direction of arrow 5, Fig.6, showing the manner of anchoring the tool to the post. i

Fig. 6 is a view looking in the directionof arrow 6 in Fig. 5, with aportion broken away to show the mannerof securingthe anchor member inplace.

Fig. 7 is a side elevationof one of; the wedge clinching members.

Fig. 8 is a front View thereof looking in the direction ofthe arrow 8 inFig. 7 and Fig. 9 is a longitudinal section taken. on line 9-9, Fig. 8.

The same referencenumerals will be used to indicate the same or similarparts throughout the several views.

Numeral 1 represents an angleir'on post to which it is desired 't0connect the wire 2 by means of astaple 8. My stapling tool consists of abody member 4 which is 'probody member 4 is of elongated shape and is.vided at one end witha handle 5-and' at the f other end with a crosshead member '6. The

provided intermediate its ends with a. slot 7 Y which serves as a guidefor a slide block8,

whichhasi secured to the front end thereof a bar 9. Secured to thebodymember dis a bracket 10, to the end of whichis pivoted by suitablemeans, such as a bolt 11, a handle 12. A s lot 13 is provided in handle12 in such aposition that it will accommodate the pin '14 which passestherethrough and intothe slide block 8.v It is apparent from l theabovethat when the handle 12 is moved nearest to arms 17 and 18 with apair of spaced shoulders 23 and 24, the former of which engages with theside of arms 17 and 18 when the tool occupies the position shown inFigs. 1 and 3, and the latter of which engages the arms when the tool isin the position shown in Fig. 2. Surrounding the pivot pins 21 and 22are springs 25, which have one end extending into a hole in'the pivot,and the other end 26 engaging with the inside of the wedge, all as shownin Figs. 8 and 9. A spring 27 has its ends secured to pins 28 and 29(Figs. 1 and 2) and is under tension whereby the arms 17 and 18 areconstantly urged towards each other. The parts are so proportioned thatwhen the bar 9 and arms 17 and 18 occupy the advanced position shown inFig. 1, the wedge members 19 and are permitted to contact, but as handle12 is moved backwardly, carrying with it the bar 9, the arms 17 and 18will be engaged on their inner side by the sides of cross head member 6,in the manner shown in Figs. 3 and 4, and this will cause the wedgemembers to move apart. As handle 12 is moved to the position shown inFig. 2, the wedges 19 and 20 will pivot on each other and spread thearms out into almost parallel relation, whereby shoulders 24 will engagethe arms and hold them in substantiallyrectangular position, while thesides of the staple are forced flat against the side of the post (Fig.2).

In Fig. at I have shown a view in which some of the parts are shown insection, for the purpose of better showing the construction by means ofwhich 1 am enabled to hold the staple and to force the same against thepost as the tool is operated. I provide a hole 30 which extendslongitudinally through the head" 6; this hole is of such size that itwill freely receive the end of an ordinary staple. In order that thestaple may be shoved out as the tool is operated for clinching the same,I provide a slide, 31 whose forward end projects a short distance intothe opening 30 when the tool is in the position shown in Fig. 1, andwhich is guided in a slot formed in member 32. One side of slide 31 isprovided with teeth 33 which engage corresponding teeth on a pinion 34Dwhich is pivoted at 35 and is provided with an arm 36 having alongitudinal slot 37 which cooperates with pivot pin 16.

1t willbe seen that when bar 9 and pin 16 are in their forward position,as shown in Fig. 1, the slide 31 will be moved backwards and provide anopening 30 of the maximum depth. Vithin this opening the staple isplaced and held while the tool is passed over the wire and anchored tothe post. hen handle 12 is moved rearwardly, pinion 3 1 will rotateabout the pivot 35 and force the slide or abutment member 31'forwardly,thus causing the staple to be moved forwardly against the approachingwedges. lf it is desired to make a tight clinch, the abutment slide 31is so adjusted that it will -move the staple well towards the front asthe clinching operation is taking place, whereas if it is desired tomake a loose clinch, abutment slide 31 may be so adjusted with respectto the pinion 34 that it will not be shoved close up against the Wire.The adjustment of the abutment is accompiished by changing it a cog oneway or the other with respect to the pinion.

In order to anchor the tool to the post, I provide on one side thereof amember 38, which is provided at its outer end with a hook 39 whichengages the edge of the post in the manner shown in Figs. 5 ,and 6. Theinner end of member 38 is pivoted at 40 and is provided with a spring411 which tends to hold the member 38 against the side of the post. Aplate 12 is secured to one side of head 6 and has outwardly extendingarms which serve to guide the arms 17 and 18 and to keep them in contactwith the head.

In Fig. 3 I have shown how the arms 17 and 18 and the wedge jaws may bespread apart so as to provide space for withdrawing the tool from thewire 2.

The operation of my tool is as follows: When it is desired to secure awire to the post 1 by means of a staple 3-, the handle 12 is broughtforward to the position shown in Fig. 1, and the staple inserted intothe opening 30 until it is stopped by the abutment 31.v The tool is thenslipped over the wire and the staple 3 so placed as to straddle the sameand to be inserted into the opening in the post. The parts will nowoccupy the position shown in 1. The operator then sees that theanchoring plate 38 engages with the post in the proper manner, afterwhich he grasps the handle 12' and moves the same backwards As he doesso, bar 9 and arms 17' and 18 move backward'ly and carry the tips ofwedges 18 and 20 between the legs of the staple. As the movementcontinues, the arms will be spread apart by the wed gin-g action of head6, and the wedges will move outwardly and spread the staple. Shoulders24 will finally engage the sides of arms 17 and 18v (Fig. 2 and afurther pull on the handle 12 will flatten the sides of the stapleagainst the post. During the entire movement of handle 12, the abutment31 has been forced forward and with it the staple 3, which has thus beenmoved towards the wedge-shaped clinching members. Vhen the staple hasbeen clinched, handle 12 is then moved to about the position shown inFig. 3. Anchor plate 38 is released and the tool is removed from overthe wire by being pulled backwards over the same, as shown in Fig. 3.

From the above it is apparent that I have provided a stapling tool thatis of substantial construction, that can be readily applied in place andremoved, and which is provided with an abutment to hold the staple inplace, as well as with spreading and clinching means that will quicklyand positively bend the staple at the surface of the post and clinchthesame fiat against the 0st. p I have also provided my tool with an adjustable abutment, by means of which I may perform a tight clinch whichwill prevent slack running from post to post in case of a broken wire,or I may make a loose clinch whenever that is desired.

Having now described my invention, I claim ist 1. A stapling tool,comprising in combie nation, a body member, a head member secured to oneend provided with an opening adapted to receive and hold a staple, amember slidable in said opening and adaptwhat ed to serve as an abutmentfor the staple, a

force the free ends of said arms together, positive means "for movingthem apart as the slidable bar is moved rearwardly by the handle, andmeans for moving the slidable abutment member as the arms are moved.

2. A stapling tool, comprising in combination, a body member, a headmember secured to one end provided with an opening 7 adapted to receiveand hold a staple, a member slidable in, said opening and adapted toserve as an abutment for the staple, a handle pivo-tally connected tosaid bo-dymember, a-

bar slidably connected with the body n1ember, means-whereby said bar maybe moved at will. by moving the handle, an arm pivoted to each end ofsaid slidable bar, a wedge member secured to the free end of each arm,resilient means tending to force the free ends of said arms together,positive means for moving them apart as the slidable bar is movedrearwardly by the handle, means for moving the slidable abutment memberas the arms are moved, and means for adjusting the extent of the forwardmovement of said abutment member.

3.A stapling tool, comprising a body said free ends in convergingrelation, means v I for moving said slidable bar with respect to thehead, and positive means for moving the free ends of said arms apart asthewedges are moved toward the head.

In testimony whereof I affix my signature.

PURLY B, EYTcH soN.

